NBC/WSJ poll: Is Obama safe choice?

"As reassuring as the poll is for Sen. Obama, Mr. Hart and Mr. McInturff agreed that it did indicate that a substantial number of voters question whether the first-term senator would be a safe choice, or whether more needs to be known about him. Mr. McInturff said some voters are wondering, 'Do we know enough about this guy?' the Wall Street Journal writes.

"While the senator's support among Democrats is little changed, he did slip among conservatives and Republican voters, groups that had shown some attraction to Sen. Obama's message of changing partisan politics in Washington. 'I think the survey does indicate that this has taken a little of the patina off Sen. Obama,' Mr. McInturff said."